Abstract: A novel microcapsule was prepared from silica encapsulating maleopimaric acid glycidyl ester type epoxy resin (MPTGE) by sol-gel process in a surfactant stabilized O/W emulsion. In these microcapsules system, MPTGE was used as the core material, and SiO2 acted as the shell material that was formed via hydrolysis and subsequent polycondensation of tetraethyl silicate (TEOS) in the presence of hydrochloric acid (HCl) as catalyst. The morphology, chemical structure, particle size and thermal stability, core material content of microcapsules were characterized by scanning electronic microscope (SEM), transmission electronic microscope (TEM), optical microscope (OM), Fourier transformation infrared spectroscope (FT-IR), zeta size analyzer and thermo gravimetric analyzer (TG), respectively. FT-IR analysis confirmed that the silica shell material was successfully fabricated onto the surface of the MPTGE core. Zeta images suggested that these microcapsules presented a very small size and the mean diameter was 8.4 μm. SEM and OM photographs showed that the microcapsules exhibited a spherical morphology with a well-defined core-shell microstructure and the surfaces of microcapsules were very smooth and compact. The TG curves illustrated that these microcapsules presented good thermal stability, and the core material content was about 58% by weight. All these results demonstrated that the microcapsules from silica encapsulating MPTGE were successfully prepared.